ARCHIVED REPORTS_HISTORICAL GROUNDWATER ELEVATIONS & ANALYTICAL RESULTS

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Geosyntee Consultants Table 4 Geochemical Parameters Data Summary HRC Pilot Scale Field Demonstration Western Farm Service,Inc.-Vernalis,California MW-4(**) MW-6 MW-6(continued) MW-2 MW-2(continued) MW-5(**) Analyte Units Method UPGRADIENT INTERGRID INTERGRID DOWNGRADIENT DOWNGRADIENT OFFSITE 6/3/2002* 8/21/2003 8/31/2004 8/23/2005 8/30/2006 8/23/2007 6/4/2002* 8/8/2002 11/14/2002 2/4/2003 5/21/2003 8/21/2003 1 12/4/2003 3/31/2004 5/27/2004 8/31/2004 11/23/2004 6/2/2005 8/23/2005 11/29/2005 1 2/27/2006 6/8/2006 6/3/2002* 8/8/2002 11/14/2002 2/4/2003 5/21/2003 8/21/2003 12/4/2003 1 3/31/2004 1 5/27/2004 8/31/2004 11/23/2004 4/7/2005 6/2/2005 8/23/2005 11/29/2005 2/27/2006 5/22/2006 8/30/2006 1 11/28/2006 3/5/2007 5/31/2007 8/23/2007 6/3/2002* 8/21/2003 8/31/2004 8/23/2005 8/30/2006 8/23/2007 VOCs 1,2-Dichloropropane gg/L EPA 8260B ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 69.2 62.3 76.9 71.0 76.7 77.2 67.2 77.7 65.6 49.3 63.6 34.5 30.5 49.0 28 51.6 25.2 23.4 37.0 36.3 28.6 40.4 13.8 16.2 15.6 16.4 8.6 12.0 14.1 13.0 5.3 16.6 8.3 13.0 8.8 11.3 12.1 ND<1.0 ND<1.0 31.4 18.0 8.8 ND<1.0 1,2,3-Trichloropropane gg/L EPA 8260B/SRL 524M ND<1.0 ND<1.0 ND<1.0 ND<0.005 ND<0.005 ND<0.0050 38.4 56.4 47.4 50.4 61.1 60.9 63.1 74.6 60.6 57.5 ND<1.0 29.4 34.7 42.5 24 40.9 3.2 3.1 9.1 7.3 5.7 7.9 2.9 4.5 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 1.0 0.36 1.00 ND<0.005 ND<1.0 0.9 ND<1.0 1.6 ND<1.0 ND<1.0 ND<1.0 0.36 0.16 0.17 2-Chloropropane gg/L EPA 8260B ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 -- <1.0 ND<1.0 18.2 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 -- -- ND<1.0 ND<1.0 -- ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 -- -- ND<1.0 1-Chloropropane gg/L EPA 8260B ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND<1.0 ND<1.0 1.6 ND<1.0 ND<1.0 ND<1.0 2.8 ND<1.0 ND<1.0 ND<1.0 15.4 ND<1.0 ND<1.0 ND<1.0 ND<1.0 10.0 ND<1.0 2.0 3.9 ND<1.0 ND<1.0 ND<1.0 ND<1.0 1.2 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 Permanent Gases Ethylene mg/L ASTM D 1945 ND<0.005 ND<0.007 ND<0.010 ND<0.008 ND<0.010 ND<0.008 ND<0.010 ND<0.002 ND<0.008 ND<0.010 ND<0.010 ND<0.010 ND<0.010 ND<0.010 ND<0.132 ND<0.010 ND<0.010 ND<0.008 ND<0.007 ND<0.010 ND<0.010 ND<0.008 ND<0.003 ND<0.008 ND<0.007 ND<0.010 ND<0.010 ND<0.007 ND<0.010 ND<0.004 ND<0.008 ND<0.010 ND<0.010 ND<0.006 ND<0.010 ND<0.010 ND<0.010 ND<0.008 ND<0.008 ND<0.010 ND<0.013 ND<0.010 ND<0.010 ND<0.010 ND<0.006 ND<0.008 ND<0.010 ND<0.010 ND<0.010 ND<0.010 Ethane mg/L ASTM D 1945 ND<0.005 ND<0.007 ND<0.010 ND<0.008 ND<0.010 ND<0.008 ND<0.010 ND<0.002 ND<0.008 ND<0.010 ND<0.010 ND<0.010 ND<0.010 ND<0.010 ND<0.132 ND<0.010 ND<0.010 ND<0.008 ND<0.007 ND<0.010 ND<0.010 ND<0.008 ND<0.003 ND<0.008 ND<0.007 ND<0.010 ND<0.010 ND<0.007 ND<0.010 ND<0.004 ND<0.008 ND<0.010 ND<0.010 ND<0.006 ND<0.010 ND<0.010 ND<0.010 ND<0.008 ND<0.008 ND<0.010 ND<0.013 ND<0.010 ND<0.010 ND<0.010 ND<0.006 ND<0.008 ND<0.010 ND<0.010 ND<0.010 ND<0.010 Methane mg/L ASTM D1945 ND<0.003 ND<0.007 ND<0.007 ND<0.006 ND<0.007 ND<0.006 ND<0.007 0.004 0.281 0.504 1.09 2.69 1.05 1.77 2.29 2.63 1.65 1.59 0.799 1.12 1.10 1.36 0.003 0.020 2.97 4.14 8.89 8.66 43.3 5.4 0.021 7.67 6.93 4.41 2.67 0.19 1.43 0.935 1.790 0.222 0.369 0.553 0.249 0.103 0.006 0.062 0.019 ND<0.007 ND<0.007 0.014 Carbon Dioxide mg/L ASTM D1945 4.94 7.54 15.1 12.3 14.7 14.8 4.12 17.6 25.9 33.6 31.3 31.3 15.9 15.4 21.7 16.5 18.5 1.60 6.98 51.4 32.7 -- ND<0.015 29.9 20.3 11.5 23.0 14.8 14.2 11.8 12.8 15.1 18.8 8.9 14.9 12.8 3.74 6.09 5.72 4.76 6.61 4.59 Propene mg/L ASTM D 1945 ND<0.005 ND<0.007 ND<0.010 ND<0.008 ND<0.010 ND<0.008 ND<0.010 0.003 0.008 ND<0.010 ND<0.010 ND<0.010 ND<0.010 ND<0.010 ND<0.132 ND<0.010 ND<0.010 ND<0.008 ND<0.007 ND<0.010 ND<0.010 ND<0.008 ND<0.003 ND<0.008 0.007 ND<0.010 ND<0.010 ND<0.007 ND<0.010 ND<0.004 ND<0.008 ND<0.010 ND<0.010 ND<0.007 ND<0.010 ND<0.010 ND<0.010 ND<0.008 ND<0.0010 ND<0.0010 ND<0.013 ND<0.010 ND<0.010 ND<0.010 ND<0.006 ND<0.008 ND<0.010 ND<0.010 ND<0.010 ND<0.010 Metabolic Acids Acetic mg/L HPLC/UV ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<10 ND<20 ND<20 ND<10 ND<50 ND<50 ND<10 ND<20 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<20.0 8.3 44.9 42.0 17.9 ND<1.0 1.8 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 Butyric mg/L HPLC/UV ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<10 ND<20 ND<20 ND<10 ND<50 ND<50 ND<10 ND<20 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<10.0 ND<10.0 41.7 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 Lactic mg/L HPLC/UV ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<10 ND<20 ND<20 ND<10 ND<50 ND<50 ND<10 ND<20 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<20.0 ND<10.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<20.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 Propionic mg/L HPLC/UV ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<10 ND<20 ND<20 ND<10 ND<50 ND<50 ND<10 ND<20 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<10.0 15.8 93.9 49.3 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 Pyruvic mg/L HPLC/UV ND<0.1 ND<1.0 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<2.0 ND<5.0 ND<10 ND<10 ND<25 ND<5.0 ND<1.0 ND<2.0 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<2.0 ND<2.0 ND<0.5 ND<0.5 ND<0.5 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<0.1 ND<2.0 ND<0.1 ND<0.1 ND<0.1 ND<0.1 General Chemistry Carbonate,as CaCO3 mg/L SM 2320 B ND<10 ND<10 ND<10 ND<10 ND<10 ND<50 ND<10 ND<10 ND<1 ND<50 ND<20 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<1 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 Hydroxide Alkalinity mg/L SM 2320 B ND<10 ND<10 ND<10 ND<10 ND<10 ND<50 ND<10 ND<10 -- ND<50 ND<20 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 Bicarbonate,as CaCO3 mg/L SM 2320 B 345 500 435 428 459 512 477 753 1,310 1,390 1,400 1,420 1,380 1,500 1,340 1,190 1,250 1,010 340 1,080 948 922 500 787 1,620 1,690 1,770 1,180 1,010 1,030 797 675 664 707 633 560 516 621 680 524 599 569 664 262 530 319 305 315 248 BOD(5 day) mg/L SM 5210B ND<4 7.0 5.0 18 26 4 ND<4 129 49 292 146 ND<4 Nitrogen,Ammonia mg/L SM 4500-NH3 ND<1.0 0.58 0.35 0.31 ND<0.30 ND<0.30 346 517 612 300 736 706 886 744 744 734 659 641 631 649 642 553 191 304 374 144 413 370 209 168 182 84 73.8 85.5 69.3 86.6 53.8 58.3 58.8 167 69.6 73.2 59.7 2.53 4.2 1.6 1.46 1.2 1.56 0.78 Sulfide,total mg/L EPA 376.2 ND<0.10 ND<0.50 ND<0.10 ND<1.5 1 ND<0.10 ND<0.10 ND<2.5 ND<1.0 ND<10 ND<10 ND<5.0 ND<5.0 ND<5.0 ND<2.5 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<1.5 ND<0.10 ND<0.10 ND<1.5 ND<0.10 ND<0.10 ND<0.50 ND<0.50 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 ND<0.10 0.11 ND<0.10 ND<0.10 ND<1.5 ND<0.10 ND<0.10 Alkalinity,as CaCO3 mg/L SM 2320 B 345 500 435 428 459 512 477 753 1,310 1,390 1,400 1,420 1,380 1,500 1,340 1,190 1,250 1,010 340 1,080 948 922 500 787 1,320 1,620 1,690 1,770 1,180 1,010 1,030 797 675 665 707 633 560 516 621 680 524 599 569 664 262 530 319 305 315 248 pH pH EPA 9040 7.3 7.2 6.8 7 7.2 6.7 7.3 7.0 7.2 7.2 6.9 7.1 6.9 7.6 6.9 6.8 6.9 6.9 7.0 6.8 6.9 7.6 7.3 7.3 6.9 7.1 6.9 6.8 7.4 7.0 6.6 6.8 6.9 7.0 6.7 6.9 6.9 7.1 6.9 7.5 6.8 6.8 7.4 7.4 7.1 7.2 7.5 7.2 Chloride mg/L EPA 9056 136 154 170 147 163 161 161 138 172 169 155 147 199 155 144 163 336 275 191 181 193 190 101 73.7 52.8 115 83.4 126 136 142 166 203 132 168 174 145 154 171 180 115 174 150 167 143 315 311 252 199 172 149 Nitrogen,Nitrate+Nitrite mg/L EPA 353.2/SM 4500 9.6 6.7 3.4 10.9 8.9 3.37 228 230 231 240 309 290 313 300 145 276 181 140 204 123 157 143 31.5 66.6 43.8 5.2 9.1 3.4 3.0 ND<0.2 ND<0.2 ND<0.2 0.3 0.3 ND<0.2 ND<0.2 ND<0.20 ND<0.20 ND<0.20 ND<0.20 0.32 0.55 0.42 2.80 11.9 27.9 19.7 27.4 1.86 5.00 J Sulfate mg/L EPA 9056 110 135 126 124 146 96.5 556 511 556 559 595 679 727 735 647 784 808 492 727 573 659 702 104 98.4 152 40.3 49.4 87.9 75.0 109.0 112 103 85 115 109 106 69.6 86.4 112.0 102 91.7 68.3 111 108 147 209 167 134 113 114 0.00 Dissolved Metals Dissolved Arsenic mg/L EPA 7060A ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.108 0.180 0.196 0.201 0.248 0.192 0.169 0.023 0.262 0.220 0.149 0.038 0.133 0.177 0.164 0.143 0.063 0.095 0.109 0.064 0.075 0.052 0.061 0.052 0.056 0.034 0.032 0.032 0.023 0.023 0.016 0.021 0.023 0.031 0.017 ND<0.005 0.020 0.022 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 Dissolved Chromium mg/L EPA 6010B ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.023 0.030 0.005 0.013 0.010 0.017 0.007 0.012 0.006 0.008 ND<0.005 0.009 0.006 0.013 0.007 0.0007 ND<0.005 0.006 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.011 0.008 0.006 0.006 0.008 0.007 Dissolved Copper mg/L EPA 6010B ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.005 0.037 0.033 0.013 0.013 0.023 0.02 0.009 0.081 0.027 0.033 0.049 0.008 0.013 0.012 ND<0.005 ND<0.005 ND<0.005 0.013 0.009 ND<0.005 0.016 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 Dissolved Iron mg/L EPA 200.7 0.034 0.664 ND<0.100 ND<0.030 0.116 0.137 2.34 2.86 2.28 2.34 0.297 1.67 0.801 1.88 0.082 0.250 0.436 1.09 0.42 1.23 0.167 0.565 ND<0.030 0.118 0.261 0.942 1.08 10.7 ND<0.030 2.22 0.261 6.82 5.57 5.75 6.32 3.32 3.92 4.60 4.89 2.34 4.31 3.53 4.22 ND<0.030 ND<0.030 0.181 ND<0.030 0.087 0.049 0.212 Dissolved Manganese mg/L EPA 200.7 ND<0.010 0.176 0.012 ND<0.005 0.005 0.105 0.812 0.846 0.476 0.354 0.099 2.43 0.344 0.373 0.276 0.286 0.282 0.282 0.279 0.363 0.717 0.236 0.037 0.572 0.320 3.87 4.32 6.06 1.94 3.44 2.26 4.69 4.15 4.40 4.62 3.52 3.38 3.82 4.13 1.99 4.19 3.28 4.23 3.34 ND<0.010 0.051 ND<0.010 0.01 ND<0.005 0.014 Dissolved Mercury mg/L EPA 7470A ND<0.0005 ND<0.0005 ND<0.0005 0.00163 ND<0.0005 ND<0.00050 ND<0.00050 0.00065 ND<0.0005 ND<0.0005 ND<0.0005 0.00228 ND<0.0005 0.00377 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 0.00130 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.0005 ND<0.0005 0.00126 ND<0.0005 ND<0.0005 ND<0.0005 ND<0.0005 ND<0.0005 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.00050 ND<0.0005 ND<0.00050 0.00086 ND<0.00050 ND<0.00050 Dissolved Nickel mg/L EPA 6010B ND<0.005 0.005 ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.095 0.081 0.077 0.074 0.0058 0.094 0.078 0.065 0.043 0.054 0.067 0.039 0.049 0.046 0.034 0.035 0.009 0.016 0.023 0.024 0.032 0.025 0.014 0.015 0.013 0.010 0.006 0.009 0.010 0.008 0.006 0.005 0.006 0.011 0.009 ND<0.005 0.008 0.006 ND<0.005 0.009 ND<0.005 ND<0.005 ND<0.005 ND<0.005 Dissolved Zinc mg/L EPA 6010B 0.015 0.426 0.342 0.297 ND<0.010 0.100 0.110 0.605 0.438 0.639 0.538 0.563 0.656 0.421 0.402 0.296 0.353 0.380 0.379 0.669 ND<0.010 ND<0.010 0.011 0.288 0.417 0.426 0.327 0.431 0.229 0.375 0.357 0.048 0.149 1 0.269 0.121 0.251 0.183 ND<0.010 ND<0.010 0.011 ND<0.010 ND<0.010 ND<0.010 0.034 0.022 0.387 0.282 0.191 ND<0.010 0.080 Total Metals Iron mg/L EPA 200.7 58.7 34.4 64.3 58.9 42.4 21.3 1020 794 543 2090 818 848 644 320 7.56 0.601 61.6 143 76.2 343 78.9 113 3.22 7.77 23.4 27.6 18.8 13.8 3.61 10.2 11.5 7.55 10.3 16.1 6.62 10.3 7.35 6.16 5.79 8.7 6.91 13.2 6.16 5.11 41.9 77.4 37.5 40.4 22.8 35.4 Manganese I mg/L EPA 200.7 1.75 0.83 1.70 1.50 1.80 0.618 25.2 17.9 14.2 42.5 17.4 16.8 14.9 7.43 0.447 0.241 1.59 3.54 2.03 6.83 1.84 2.21 0.101 0.603 0.767 6.44 2.06 2.1 1.74 3.44 2.69 4.51 4.32 3.76 4.2 2.95 3.63 3.61 3.76 2.15 3.95 3.44 3.61 3.17 1.12 1.68 0.89 1 0.74 0.866 Phosphorus I mg/L I EPA 200.7 1.1 ND<1.0 1.2 ND<1.0 2.3 0.11 260 382 247 414 362 380 298 340 259 265 276 216 320 289 244 71.5 126 106 39.7 52.5 60.3 19.6 20.0 10.9 13.3 16.4 10.3 16.8 9.1 10.5 11.3 30.8 8.9 16.3 10.7 9.81 ND<1.0 1.7 ND<1.0 1.3 1.5 0.79 -"means not analyzed *Pre-injection sample results **Wells monitored on an annual basis The reporting limit for this analyte was raised to account for matrix interference. J-Detected below reporting limit;Result is an estimated concentration Page 11 of 13 4/21/2020